Conduit for gas fuel.



- UNITED sTATEs PATENT OFFICE'.

CONSTRUCTION COMPANY, F MASSACHUSETTS. i

EBENEZER A. W. JEIEIFEIIBIES,V O F WCBCESTEB., MASSACHUSETTS, ASSIGNCBT0 HCBGAN WORCESTER, MASSACHUSETTS, A COBIPCI)BATIO1\I' 0F coimurr FonGAS FUEL.

Application filed March 7, 1910. 4Serial No. 547,709;

To all whom if. may concern:

Beit knovvn that I, EBENZER A. W.

'JrrrERii-:s, a citizen of the United States,

residing at llloicester, iii the county of'- lYorcester and Commonwealthof Massachusetts, have invented a new, and useful Im-g provenient inConduits for Gas Fuel, .of ivliicli the following is a. specification,ac'

- companicd by drawings forming apart of 'vided with recesses thesain-e, in Which- F'gure 1 represents a central longitudinal `sect-ion.of a portion of a conduit vfor gas fuel embodying my invention. Fig. 2is a transverse sectional vienT on line'9f-2, Fig. 1. Fig. 3 is acentral longitudinal vienv showing a modified forni of construction.Fig. 4: is a detached sectional view of the 5 and 6 of the case, shownslightly separated. Fig. 5 is a top view of that part of the case shoivnat 6, Figs. Q and 4.

Similar reference characters refer to simi lar parts in the differentfigures.

The object of .my present -'nvention is to provide a conduit for gasfuel having means for the removal of soot, or other combustiblematerial, which is liable to accumulate in the bottom of the conduit'during the passage of gas fu'eltlierethrough, and I ac. complish thisobject by the construction and arrangement-s of parts as hereinafter described and pointed out in the annexed claims.

Referring to the accompanying drawings, 1 denotes aconduit for gas fuelconsisting, in the present instance, of acyliiidrical pipe suitablylined with brick, or similarniaterial, through which gas fuel isconducted 'in the direction of the arrow 2, Fig. 1. In-

serted Within Athe brick lining 3 'is a bcX or case, preferably ofA castiron, inclosing a compressed air chamber 4. The box or case may beconveniently made, as shown in Figs. 1 and 2, in'ttvo parts and 6, saidparts being slioirn opposing each other but slightly separated in Fig.et, and tlie'inner' ortion 6 being shoivn in top view iii Fig. The topside '7 of the part 6 is iverlapped by the top sideS of the part 5, butthe upper surface of the overlapped side 7 is pro- 9 .extendingentirely. across the side 7 and communicating with the interior airchamber 1. The outer ends i .of the recesses are Wider than the innerends to be' expanded thin horizontal currents as they enterthe Ainteriorof the con-- Specification of Letters Patent. vPeniged Sep-1;', 10,1912i' duit.-A screw threaded-'opening is pro-l vided in .the outer sideof the box to receive anv air pipe l0 4communicating with a common suppy a sourc of air supply under pressure. -The pipe. 1 1s preferabl'extended theentire length of thel conduit -with branching air pipescommunicating with' compressed-air boxes at frequent intervals in' thelength of" the conduit.

A 'charge of compressed air is forced through the pipes l11 -and 10into. t-lie 'air chamber 1' and nds. its escape through th'e recesses 9,as indicated by thea'rrows 12, 12, Fig. 1.

pipe 11, which is connected with livered through" the shallow recesses 9in 5 thin sheets just Within the inner lining 3 o'f theconduitpart-ially loos'ens the accumulated mass of soot and furnishes asupply of oxygen which supports combustion and reduces the particlesofsoot to a gaseous form. In Fig. 3 I 'have shown the 'conduit 1 having asimilar. compressed lair box` 4 with supply pipes 10 and 11, but the boxis inodified in the matter of its delivery recesses by having similarrecesses 13, 14 for the discharge of compressed air from the box 4, therecesses 13 and'lt' opening in opposite directions, and causing t-hecurrentsof 'air to pass both in the direction of the arrow 15 and alsoi-n theopposite direction, as 'shown by the arrow4 1G, therebyincreasing the area of combustion. It has heretofore been proposedtoforce' the soot forward with the moving gas ,in the conduit by means ofamechanica'l 'agitation of the soot deposit ivhich sometimes results ina. mere change in the location of the deposit. By my improvement- Ieffect the combustion ofthe soot by a supply of oxygen tothecarboncontaiiied in the soot; t-he loosening of the soot facilitatingthe admixtiire of air and promoting the more cornfpleteconibiistion,reducing the solid parti'- eles of soot to a gaseous product which-isthenicarried forward byfthe current of gas flowing tlirougli'tlieconduit..

I claim,

1. The combination with a. conduit. for

gas fuel, of a shell heldin vthe wall ofthe conduit, having one ofits'sides at an angle ivithrt'he axis of the conduit exposed and`provided With a narrow slit opening into-1141 the conduit in the planeof the inner surface of the Wall of the conduit, and means for supplyingair under pressure to said shell.

2. The combination with a conduit for gas ueh of a shell, for compressedair in the Wall of the conduit-and having overlaping inner Walls with anintervening space 1n the plane of the inner surface of the conduit andcommunicating With,the interior.

of the shell, and means for supplying compressed air to said shell.

3; A conduit for gas fuel, comprising a pipe having a refractory lining,a metallic shell inclosing a chamber for compressed air contained Withinsaid lining and having .overlapping innervv'alls provided with recessesbetween them, forming air passages from said air chamber to the interiorof the conduit parallel with the inside of said u lining.

4. The combination with a conduit for gas fuel having a refractory Wall,of a metallic shell held Within said Wall and inclosing ,a

compressed air chamber, said shell having,

overlapping sides next the interior of said duit in a thin sheetadjacent to its inner surface. t

'Dated this third day of `March 1910.

EBENEZER A. W. JEFFERiEs.

l l Witnesses:

PENELOPE CoMBrlRBAoH, NELLIE WHALEN.

